A silk screen drying online circulating air-ice water cooling device

Abstract

The cooling device of the present invention is a kind of online circulating air-ice water cooling device for silk screen drying, comprising a conveyor belt, a cooling box provided on the conveyor belt, an air inlet and an air outlet respectively provided on the cooling box facing the conveyor belt, and an air cooling device is provided in the cooling box; the air cooling device comprises a fan, a rotating seat and a condensed water cleaning structure, a cavity is provided in the rotating seat, and a water inlet and a water outlet connected to the cavity are respectively passed through the center of both sides of the rotating seat, a U-shaped connecting seat is provided in the cooling box, the U-shaped connecting seat is symmetrically provided with bearing seats on the two inner sides of the U-shaped connecting seat, the rotating seat is rotatably arranged between the two bearing seats through a sealed bearing, a water inlet pipe and a water outlet pipe are respectively sealed and inserted in the inner centers of the two bearing seats, the water inlet pipe is correspondingly inserted in the water inlet, and the water outlet pipe is correspondingly inserted in the water outlet; the condensed water cleaning structure comprises a sponge body symmetrically located at both ends of the rotating seat and capable of abutting against the side walls of the two ends of the rotating seat to wipe and absorb condensed water, and a driving mechanism that can drive the rotating seat to rotate.

Description

Technical Field

[0001] The present invention particularly relates to an online circulating air-ice-water cooling device for screen printing and drying. Background Art

[0002] The main reason aluminum labels need to be cooled after drying is to prevent moisture absorption and ensure print quality. During the screen printing process, if the aluminum sheet is weighed or handled directly after drying, the high temperature may cause it to absorb moisture from the air, resulting in moisture absorption, which can affect the printing effect and product quality. Furthermore, hot aluminum sheets may damage measuring equipment, and changes in surrounding airflow may also lead to inaccurate weighing.

[0003] However, the current cooling device only uses fans to blow air for cooling, which results in low cooling efficiency and a long cooling time, which correspondingly increases production costs and cannot meet usage requirements. Summary of the Invention

[0004] The present invention aims to solve at least one of the problems existing in the existing related technologies to a certain extent. To this end, the present invention proposes an online circulating air-ice-water cooling device for screen printing drying.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A screen printing drying online circulating air-ice-water cooling device comprises a conveyor belt, a cooling box is provided on the conveyor belt, an air inlet and an air outlet are provided on the side of the cooling box facing the conveyor belt, and an air cooling device is provided in the cooling box;

[0007] An air cooling device includes a fan, a rotating seat and a condensed water cleaning structure. The rotating seat has a cavity therein, and a water inlet and a water outlet communicating with the cavity are respectively penetrated at the center of both sides of the rotating seat. A U-shaped connecting seat is provided in the cooling box, and bearing seats are symmetrically provided on both inner sides of the U-shaped connecting seat. The rotating seat is rotatably arranged between the two bearing seats through a sealed bearing. A water inlet pipe and a water outlet pipe are respectively sealed and plugged into the inner centers of the two bearing seats. The water inlet pipe is correspondingly plugged into the water inlet, and the water outlet pipe is correspondingly plugged into the water outlet.

[0008] The condensation water cleaning structure includes a sponge body symmetrically located at both ends of the rotating seat and capable of abutting the side walls of the rotating seat at both ends to wipe and absorb the condensation water, and a driving mechanism capable of driving the rotating seat to rotate, wherein the rotating seat is provided with an insulating cotton layer along the circumferential side wall.

[0009] In one embodiment, the driving mechanism includes a motor arranged on one side of the U-shaped connecting seat, a driving gear is provided on the motor driving shaft, and a transmission gear ring is provided on one side of the rotating seat cocentrically arranged therewith, and the driving gear is engaged with the transmission gear ring.

[0010] In one embodiment, the condensate water cleaning structure also includes an extrusion groove recessed inside the U-shaped connecting seat, the sponge body is elastically and flexibly arranged in the extrusion groove, and initially the sponge body is kept in a connection state convex outside the extrusion groove by the elastic force, and the width of the extrusion groove is smaller than the width of the sponge body, so that the sponge body can be deformed and compressed to drain water when it is compressed into the extrusion groove by force, and the U-shaped connecting seat is provided with a first transmission mechanism that can be rotated by the rotating seat to drive the sponge body to move into the extrusion groove.

[0011] In one embodiment, a drainage hole is formed through the lower end of the extrusion groove, and a water collecting tank is connected to the lower end of the drainage hole in the cooling box.

[0012] In one embodiment, the first transmission mechanism includes a limiting ring group symmetrically arranged on both sides of the U-shaped connecting seat, and the rotating seat is concentrically arranged at the inner ring of the limiting ring group; the limiting ring group includes a first limiting ring and a second limiting ring concentrically arranged, and a limiting cavity is formed between the first limiting ring and the second limiting ring, and a first arc-shaped convex portion protruding away from the spongy body is provided in the limiting cavity at a position corresponding to the spongy body, and grooves are respectively concave on both sides of the rotating seat, and a flap is rotatably arranged in the groove, and a first universal ball is movably provided at one end of the flap, and the first universal ball is movably arranged in the limiting cavity. The first universal ball can rotate with the rotating seat and contact the first arc-shaped convex portion so that the flap rotates and presses on the spongy body. At this time, the spongy body is displaced into the extrusion groove under the force.

[0013] In one embodiment, the sponge body includes a connecting plate and a sponge fixedly wrapped on the connecting plate, the width of the connecting plate is smaller than the width of the extrusion groove, and a clearance gap is provided on the corresponding flap on the connecting plate so that the flap can pass over the connecting plate through the clearance gap when the flap rotates with the rotating seat. The connecting plate is located on the side facing the extrusion groove and is spaced apart with a guide shaft, one end of the guide shaft passes through the U-shaped connecting seat and is provided with a limit plate, and a spring is provided on the guide shaft between the connecting plate and the extrusion groove.

[0014] In one embodiment, the water inlet pipe and the water outlet pipe are both L-shaped, and the water outlet end of the water inlet pipe is opposite to the water inlet end of the water outlet pipe.

[0015] In one embodiment, an air duct with upper and lower openings is rotatably provided in the air outlet, and a second transmission mechanism is provided in the cooling box, which can be rotated by a rotating seat to drive the air duct to swing back and forth.

[0016] In one embodiment, the second transmission mechanism includes a connecting rod and a push rod, and the air duct is eccentrically rotated and arranged in the air outlet so that the upper end of the air duct is biased toward the air inlet due to its own weight in the initial state. The upper end of the air duct is provided with a flange along the edge contour, and the push rod is provided in the cooling box and abuts under the flange, and the push rod can be located between the air inlet and the air outlet for reciprocating movement, and the abutting surface of the push rod for abutting against the flange is provided with a second arc-shaped protrusion, and the connecting rod is hinged between the push rod and the driving gear.

[0017] In one embodiment, a through groove is passed through the upper side of the push rod, and two or more positioning shafts are provided on the cooling box at intervals. The positioning shafts are movably arranged in the through groove, and a limiting nut is provided on the positioning shafts above the push rod in a threaded fitting manner.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention allows ice water to flow from the water inlet pipe into the cavity of the rotating seat and be discharged from the water outlet pipe, thereby achieving continuous flow and heat exchange of ice water in the cavity of the rotating seat. When the fan is working, cooling air is transported from the air inlet of the cooling box to the air outlet, and the cooling air passes through the rotating seat to achieve heat exchange cooling of the cooling air, effectively enhancing the cooling effect and efficiency of the workpiece.

[0020] At the same time, as the cooling air passes through the rotating seat, water droplets will appear on the outer wall of the rotating seat after the hot air blows through the rotating seat of the ice. The hot air increases the surface temperature of the rotating seat of the ice, causing the water vapor in the surrounding air to liquefy and form water droplets on its surface. This process consumes the water vapor in the surrounding air, so the air becomes relatively dry, and the dry air can ensure the dry state of the workpiece after drying.

[0021] The condensed water cleaning structure can quickly and effectively clean the condensed water in time to avoid excessive condensed water on the surface of the rotating seat. The continuous blowing of the fan will accelerate the evaporation of water, causing the condensed water to be converted back into water vapor and diffused into the air, affecting the dry state of the workpiece after drying.

[0022] The circumferential side walls of the rotating seat are wrapped with a heat-insulating cotton layer, so that the rotating seat can radiate heat exchange and cool, and the condensed water droplets are only on the two end side walls of the rotating seat. Therefore, no matter what the circumferential contour shape of the rotating seat is, the condensed water cleaning structure can clean the condensed water on the surface of the rotating seat in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a framework diagram of a screen printing drying online circulating air-ice-water cooling device in the present invention;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the air cooling device of the present invention;

[0025] Figure 3 Schematic diagram of the cross-sectional structure of the air cooling device of the present invention;

[0026] Figure 4 This is one of the partially exploded three-dimensional structural diagrams of the air cooling device of the present invention;

[0027] Figure 5 This is the second schematic diagram of the partially exploded three-dimensional structure of the air cooling device of the present invention;

[0028] Figure 6 Schematic diagram of the three-dimensional structure of the sponge in the present invention;

[0029] Figure 7 For the present invention Figure 2 A magnified schematic diagram of . DETAILED DESCRIPTION

[0030] The following detailed description provides various embodiments or examples for implementing the present invention. Of course, these are merely examples or embodiments and are not intended to be limiting. Furthermore, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. Such repetition is for simplicity and clarity in describing the present invention and does not imply a specific relationship between the different embodiments and / or configurations discussed.

[0031] like Figures 1 to 7 The screen printing drying online circulating air-ice-water cooling device shown in the figure includes a conveyor belt 1, a cooling box 2 is provided on the conveyor belt 1, and the cooling box 2 is provided with an air inlet 3 and an air outlet 4 on the side facing the conveyor belt 1, and an air cooling device is provided in the cooling box 2; the air cooling device includes a fan 31, a rotating seat 32 and a condensed water cleaning structure, the rotating seat 32 has a cavity 33, and the center of both sides of the rotating seat 32 is respectively penetrated with a water inlet 34 and a water outlet 35 connected to its cavity 33, a U-shaped connecting seat 36 is provided in the cooling box 2, and the inner sides of the U-shaped connecting seat 36 are symmetrical A bearing seat 37 is provided, and the rotating seat 32 is rotatably arranged between the two bearing seats 37 through a sealed bearing 38. A water inlet pipe 39 and a water outlet pipe 40 are respectively sealed and inserted in the inner center of the two bearing seats 37. The water inlet pipe 39 is correspondingly inserted into the water inlet 34, and the water outlet pipe 40 is correspondingly inserted into the water outlet 35; a condensed water cleaning structure includes a sponge 5 symmetrically located at both ends of the rotating seat 32 and capable of abutting against the side walls of the rotating seat 32 at both ends to wipe and absorb condensed water, and a driving mechanism 6 that can drive the rotating seat 32 to rotate, wherein the rotating seat 32 is provided with a heat insulating cotton layer along the circumferential side wall.

[0032] Specifically, by flowing ice water from the water inlet pipe into the cavity of the rotating seat and discharging it from the water outlet pipe, the ice water in the cavity of the rotating seat is continuously circulated and heat exchanged. When the fan is working, the cooling air is transported from the air inlet of the cooling box to the air outlet. The cooling air passes through the rotating seat to achieve heat exchange cooling of the cooling air, effectively enhancing the cooling effect and efficiency of the workpiece.

[0033] At the same time, as the cooling air passes through the rotating seat, water droplets will appear on the outer wall of the rotating seat after the hot air blows through the rotating seat of the ice. The hot air increases the surface temperature of the rotating seat of the ice, causing the water vapor in the surrounding air to liquefy and form water droplets on its surface. This process consumes the water vapor in the surrounding air, so the air becomes relatively dry, and the dry air can ensure the dry state of the workpiece after drying.

[0034] The sponge in the condensed water cleaning structure cooperates with the driving mechanism so that the driving mechanism drives the rotating seat to rotate, and the sponge can quickly and effectively clean the condensed water in time when the rotating seat rotates, so as to avoid excessive condensed water on the surface of the rotating seat. The continuous blowing of the fan will accelerate the evaporation of water, causing the condensed water to be converted back into water vapor and diffused into the air, affecting the dry state of the workpiece after drying.

[0035] The circumferential side walls of the rotating seat are wrapped with a heat-insulating cotton layer, which effectively isolates the heat exchange of the circumferential side walls of the rotating seat, thereby avoiding the formation of condensed water on the circumferential side walls of the rotating seat. Therefore, the rotating seat can radiate heat exchange and cool, and the surface of the condensed water droplets is only on the two end side walls of the rotating seat. Therefore, no matter what the circumferential contour shape of the rotating seat is, the condensed water cleaning structure can clean the condensed water on the surface of the rotating seat in time.

[0036] Specifically, the heat-insulating cotton layer includes a cover shell covering the circumferential side wall of the rotating seat, and heat-insulating cotton filling the inner cavity of the cover shell.

[0037] Furthermore, the drive mechanism 6 includes a motor 61 disposed on one side of the U-shaped connecting base 36. A drive gear 62 is provided on the drive shaft of the motor 61. A transmission gear ring 63 is provided on one side of the rotating base 32 and is coaxially disposed therewith. The drive gear 62 is in driving engagement with the transmission gear ring 63. Specifically, the motor drives the drive gear to rotate, which in turn drives the transmission gear ring to rotate, thereby causing the rotating base to rotate relative to the U-shaped connecting base.

[0038] Furthermore, the condensate cleaning structure also includes an extrusion groove 7 recessed inside the U-shaped connecting seat 36, the sponge 5 is elastically and telescopically arranged in the extrusion groove 7, and initially the sponge 5 is kept in a connection state convex outside the extrusion groove 7 by the elastic force, and the width of the extrusion groove 7 is smaller than the width of the sponge 5, so that the sponge 5 can be deformed and compressed to drain water when it is compressed into the extrusion groove 7 by force, and the U-shaped connecting seat 36 is provided with a first transmission mechanism 8 that can be rotated through the rotating seat 32 to drive the sponge 5 to move into the extrusion groove 7.

[0039] Specifically, initially the sponge is maintained in a connected state protruding from the outside of the extrusion groove by the elastic force. At this time, the sponge remains elastically in contact with the end side wall of the rotating seat, adsorbing and cleaning the condensed water on the end side wall of the rotating seat, and then the first transmission mechanism is used to drive the sponge to move into the extrusion groove due to the rotation of the rotating seat, so that the sponge can absorb and squeeze out the condensed water in turn, avoiding the need to install an independent electrically controlled driving source to drive the sponge, which would increase the production and maintenance costs.

[0040] Furthermore, a drainage hole 9 is formed through the lower end of the extrusion groove 7, and a water collection tank 10 is connected to the lower end of the drainage hole 9 in the cooling box 2. When the sponge is displaced into the extrusion groove by force, the extrusion groove squeezes the sponge, and the condensed water absorbed in the sponge is squeezed and falls down and is collected in the water collection tank through the drainage hole. The adsorption and cleaning by the sponge effectively prevents the fan from directly blowing on the condensed water, causing evaporation of water vapor and affecting the drying of the workpiece.

[0041] Furthermore, the first transmission mechanism 8 includes a limit ring group symmetrically arranged on both sides of the U-shaped connecting seat 36, and the rotating seat 32 is concentrically arranged at the inner ring of the limit ring group; the limit ring group includes a first limit ring 81 and a second limit ring 82 concentrically arranged, a limit cavity 83 is formed between the first limit ring 81 and the second limit ring 82, and a first arc-shaped convex portion 84 protruding away from the sponge 5 is provided in the limit cavity 83 at a position corresponding to the sponge 5, and a groove 85 is respectively recessed on both sides of the rotating seat 32, and a flap 86 is rotatably arranged in the groove 85, and a first universal ball 87 is movably provided at one end of the flap 86, and the first universal ball 87 is movably arranged in the limit cavity 83. The first universal ball 87 can rotate with the rotating seat 32 and contact the first arc-shaped convex portion 84 to cause the flap 86 to rotate and press on the sponge 5. At this time, the sponge 5 is displaced into the extrusion groove 7 by force.

[0042] Specifically, the first limiting ring and the second limiting ring in the limiting ring group cooperate with the first arc-shaped protrusion to form a connected dislocated space that is laterally dislocated when viewed from a top-down angle at the position of the first arc-shaped protrusion in the limiting cavity. When the universal ball at one end of the flap is located in the limiting cavity except for the position of the first arc-shaped protrusion, the flap cannot rotate outward relative to the rotating seat and protrude outside the groove. When the universal ball at one end of the flap rotates and moves to the position of the first arc-shaped protrusion with the rotating seat, the universal ball collides with the first arc-shaped protrusion to cause the flap to flip outward relative to the rotating seat and press on the sponge, thereby driving the sponge to move into the extrusion groove.

[0043] Furthermore, the sponge body 5 includes a connecting plate 51 and a sponge 52 fixedly wrapped around the connecting plate 51. The width of the connecting plate 51 is smaller than the width of the extrusion groove 7. A clearance notch 53 is provided on the connecting plate 51 corresponding to the flap 86, so that the flap 86 can pass over the connecting plate 51 through the clearance notch 53 when rotating with the rotating seat 32. A guide shaft 54 ​​is provided on the connecting plate 51 on the side facing the extrusion groove 7. One end of the guide shaft 54 ​​passes through the U-shaped connecting seat 36 and is provided with a limit plate 55. A spring 56 is sleeved on the guide shaft 54 ​​between the connecting plate 51 and the extrusion groove 7. Specifically, the spring cooperates with the guide shaft to achieve elastic expansion and contraction movement of the connecting plate relative to the depth direction of the extrusion groove, so that the sponge can move into the extrusion groove with the connecting plate and be squeezed and drained by the extrusion groove.

[0044] Furthermore, the water inlet pipe 39 and the water outlet pipe 40 are both L-shaped, and the outlet end of the water inlet pipe 39 is opposite to the inlet end of the water outlet pipe 40, thereby effectively enhancing the fluidity of the cooling water in the cavity of the rotating seat.

[0045] Furthermore, an air duct 11 with upper and lower openings is rotatably mounted within the air outlet 4. A second transmission mechanism 12 is provided within the cooling box 2, which is capable of rotating through a rotating base 32 to drive the air duct 11 to swing back and forth. Specifically, the second transmission mechanism synchronizes the reciprocating swinging of the air duct with the rotation of the rotating base, thereby achieving a coordinated transmission of the air duct, avoiding the need for an additional, electrically controlled, independent drive source to drive the air duct, which would increase production and maintenance costs.

[0046] Furthermore, the second transmission mechanism 12 includes a connecting rod 13 and a push rod 14. The air duct 11 is eccentrically rotated and arranged in the air outlet 4, so that in the initial state, the upper end of the air duct 11 is biased toward the air inlet 3 due to its own weight. The upper end of the air duct 11 is provided with a flange 15 along the edge contour. The push rod 14 is arranged in the cooling box 2 and abuts against the bottom of the flange 15, and the push rod 14 can be located between the air inlet 3 and the air outlet 4 for reciprocating movement. The abutting surface of the push rod 14 for abutting against the flange 15 is provided with a second arc-shaped protrusion 16, and the connecting rod 13 is hinged between the push rod 14 and the driving gear 62.

[0047] Specifically, the connecting rod is used to drive the driving gear to rotate and at the same time drive the push rod to move back and forth relative to the cooling box. In the initial state of the air duct, the upper end of the air duct is biased toward the air inlet side due to its own weight. Therefore, when the push rod moves back and forth, the second arc-shaped protrusion on the push rod can guide the flange of the lifting air duct, thereby realizing the reciprocating swing of the air duct, and then the reciprocating swing of the air duct is used to blow air to effectively increase the coverage area of ​​cooling the workpiece.

[0048] Furthermore, a through slot 17 is formed on the upper side of the ejector rod 14, and two or more positioning shafts 18 are provided on the cooling box 2 at intervals. The positioning shafts 18 are movably arranged in the through slots 17, and a limiting nut 19 is threadedly provided on the positioning shaft 18 above the ejector rod 14. The limiting nut is used to limit the ejector rod so that the ejector rod can reciprocate relative to the two positioning shafts along the length direction of the through slot, and the limiting nut can be removed to facilitate the removal, replacement, and maintenance of the ejector rod.

[0049] The basic principles, main features, and advantages of the present invention are shown and described above in conjunction with the accompanying drawings. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention as claimed. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A screen printing drying online circulating air-ice water cooling device, comprising a conveyor belt (1), wherein a cooling box (2) is provided on the conveyor belt (1), characterized in that: The cooling box (2) is provided with an air inlet (3) and an air outlet (4) on the side facing the conveyor belt (1), and an air cooling device is provided in the cooling box (2); the air cooling device comprises a fan (31), a rotating seat (32) and a condensed water cleaning structure, the rotating seat (32) has a cavity (33) therein, and a water inlet (34) and a water outlet (35) connected to the cavity (33) are respectively passed through the center of both sides of the rotating seat (32), the cooling box (2) is provided with a U-shaped connecting seat (36), and bearing seats (37) are symmetrically provided on both inner sides of the U-shaped connecting seat (36). The movable seat (32) is rotatably arranged between the two bearing seats (37) through a sealed bearing (38), and a water inlet pipe (39) and a water outlet pipe (40) are respectively sealed and plugged into the inner center of the two bearing seats (37), the water inlet pipe (39) is correspondingly plugged into the water inlet (34), and the water outlet pipe (40) is correspondingly plugged into the water outlet (35); the condensed water cleaning structure includes a sponge (5) symmetrically located at both ends of the rotating seat (32) and capable of abutting against the side walls of both ends of the rotating seat (32) to wipe and absorb the condensed water, and a driving mechanism (6) capable of driving the rotating seat (32) to rotate, wherein the rotating seat (32) The movable seat (32) is provided with a heat-insulating cotton layer along the circumferential side wall; the driving mechanism (6) includes a motor (61) arranged on one side of the U-shaped connecting seat (36); a driving gear (62) is provided on the driving shaft of the motor (61); a transmission gear ring (63) is provided on one side of the rotating seat (32) and is arranged concentrically with the rotating seat; the driving gear (62) is connected to the transmission gear ring (63) in a transmission meshing manner; the condensate cleaning structure also includes an extrusion groove (7) recessed inside the U-shaped connecting seat (36); the sponge (5) is elastically and telescopically arranged in the extrusion groove (7), and the sponge (5) is initially 5) The connection state of the sponge (5) is maintained by elastic force and convex outside the extrusion groove (7), and the width of the extrusion groove (7) is smaller than the width of the sponge (5), so that the sponge (5) can be deformed and compressed to drain water when it is compressed into the extrusion groove (7). The U-shaped connecting seat (36) is provided with a first transmission mechanism (8) that can be rotated by the rotating seat (32) to drive the sponge (5) to move into the extrusion groove (7); the first transmission mechanism (8) includes a limit ring group symmetrically arranged on both sides of the U-shaped connecting seat (36), and the rotating seat (32) is concentrically arranged at the inner ring of the limit ring group;The limiting ring group comprises a first limiting ring (81) and a second limiting ring (82) which are arranged at intervals and are coaxially arranged. A limiting cavity (83) is formed between the first limiting ring (81) and the second limiting ring (82). A first arc-shaped convex portion (84) which is convex in a direction away from the sponge (5) is provided in the limiting cavity (83) at a position corresponding to the sponge (5). Grooves (85) are respectively formed on both sides of the rotating seat (32). A flap (86) is rotatably provided in the groove (85). A first universal ball ( 87), the first universal ball (87) is movably arranged in the limiting cavity (83), and the first universal ball (87) can rotate with the rotating seat (32) and contact with the first arc-shaped protrusion (84) to cause the flap (86) to rotate and press on the sponge (5), at this time the sponge (5) is displaced into the extrusion groove (7) by force; an air duct (11) with upper and lower openings is rotatably arranged in the air outlet (4), and a second transmission mechanism (12) is provided in the cooling box (2) that can rotate through the rotating seat (32) to drive the air duct (11) to swing back and forth.; 2. The screen printing drying online circulating air-ice water cooling device according to claim 1 is characterized by: A drainage hole (9) is formed through the lower end of the extrusion groove (7), and a water collecting tank (10) is connected to the lower end of the drainage hole (9) in the cooling box (2).

3. The screen printing drying online circulating air-ice water cooling device according to claim 1 is characterized by: The sponge body (5) includes a connecting plate (51) and a sponge (52) fixedly wrapped on the connecting plate (51). The width of the connecting plate (51) is smaller than the width of the extrusion groove (7). A clearance notch (53) is provided on the connecting plate (51) corresponding to the flap (86), so that the flap (86) can pass over the connecting plate (51) through the clearance notch (53) when rotating with the rotating seat (32). The connecting plate (51) is provided with a guide shaft (54) at a distance on the side facing the extrusion groove (7). One end of the guide shaft (54) passes through the U-shaped connecting seat (36) and is provided with a limit plate (55). A spring (56) is provided on the guide shaft (54) between the connecting plate (51) and the extrusion groove (7).

4. The screen printing drying online circulating air-ice water cooling device according to claim 1 is characterized by: The water inlet pipe (39) and the water outlet pipe (40) are both L-shaped, and the water outlet end of the water inlet pipe (39) and the water inlet end of the water outlet pipe (40) are oppositely arranged.

5. The screen printing drying online circulating air-ice-water cooling device according to claim 1 is characterized by: The second transmission mechanism (12) includes a connecting rod (13) and a push rod (14). The air duct (11) is eccentrically rotated and arranged in the air outlet (4), so that the upper end of the air duct (11) is biased toward the air inlet (3) due to its own weight in the initial state. The upper end of the air duct (11) is provided with a flange (15) along the edge contour. The push rod (14) is arranged in the cooling box (2) and abuts against the bottom of the flange (15). The push rod (14) can be located between the air inlet (3) and the air outlet (4) and move back and forth. The abutting surface of the push rod (14) for abutting against the flange (15) is provided with a second arc-shaped protrusion (16). The connecting rod (13) is hinged between the push rod (14) and the driving gear (62).

6. The screen printing drying online circulating air-ice water cooling device according to claim 5, characterized in that: A through slot (17) is passed through the upper side of the push rod (14), and two or more positioning shafts (18) are spaced apart on the cooling box (2). The positioning shafts (18) are movably arranged in the through slot (17), and a limiting nut (19) is provided on the positioning shafts (18) and is threadedly fitted above the push rod (14).

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